"Consider research on bad apples and team effectiveness by Will Felps, Terence R. Mitchell and Eliza Byington. They examined the impact of team members who were deadbeats (“withholders of effort”), downers (who “express pessimism, anxiety, insecurity and irritation”) and jerks (who violate “interpersonal norms of respect”). An experiment by Mr. Felps found that having just one slacker or jerk in a group can bring down performance by 30% to 40%."

A Few Troublesome Employees Can Outweigh the Good - WSJ.com

Ok….not good news for me. I want my A+ :(